NDLI: Robust change detection in highly dynamic guided wave signals with singular value decomposition

Content Provider	IEEE Xplore Digital Library
Author	Chang Liu Harley, J. O'Donoughue, N. Yujie Ying Altschul, M.H. Berges, M. Garrett, J.H. Greve, D.W. Moura, J.M.F. Oppenheim, I.J. Soibelman, L.
Copyright Year	2012
Description	Author affiliation: Dept. Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA (Harley, J.; O'Donoughue, N.; Greve, D.W.; Moura, J.M.F.) \|\| Dept. of Civil & Environ. Eng., Univ. of Southern California, Los Angeles, CA, USA (Soibelman, L.) \|\| Carnegie Mellon Univ., Pittsburgh, PA, USA (Altschul, M.H.) \|\| Dept. of Civil & Environ. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA (Chang Liu; Yujie Ying; Berges, M.; Garrett, J.H.; Oppenheim, I.J.)
Abstract	Ultrasonic guided waves are sensitive to small scatterers and can, in principle, be used to detect damage in pipe structures. However, pipes are often subjected to varying environmental and operational conditions (EOC), which can produce false positives or mask the change of interest. We apply singular value decomposition as a robust change detection method in ultrasonic signals. We test the methods on experimental data collected in a realistic highly dynamic environment, and show successful detection of a mass scatterer as a physical simulation of damage. We also compare our method to two other change detection methods that are robust to EOC.
Starting Page	483
Ending Page	486
File Size	1159283
Page Count	4
File Format	PDF
ISBN	9781467345613
ISSN	19485719
e-ISBN	9781467345620
DOI	10.1109/ULTSYM.2012.0120
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-07
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Acoustics Vectors Robustness Singular value decomposition Monitoring Matrix decomposition Ultrasonic variables measurement singular value decomposition Ultrasonic guided wave pipe monitoring damage detection environmental and operational variation
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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